Antirattler for automobile windows



. TTWOOD.

AUTOMOBILE WINDOWS.

LED MAY 27. 1921.

v Patented Dec 12,1922.

ANTIRATTL I 1,438,209.

a'nvewto z Hes F. flttwoo d.

* MM/ ham;

6 Woman;

Patented Dec. 12, 1922.

METRE sra i i oHAn ns r. n'rrwoon, or snnivn narrns, strongman.

ANTIBA'ITLER FOR AUTOMOBILE WINDOWS.

Application filed May 27,

State of Michigan, have invented certain new and useful Improvements in Antirattiers for Automobile Windows, of which the following is a specification.

My invention relates to improvements 1n the rubber tips that are used upon the hearing ends of bolts in automobile window and door antirattlers, and its objects are: first, to provide a means whereby the retaining bolt will be held safely against the danger of revolving upon the surface of the glass and becoming loose enough to allow the glass to rattle in its bearings; second, to provide a means whereby it will not be necessary to press the tips too heavily against the glass; third, to provide a means whereby a strong suction be sustained between the end of the tip and the surface of the glass, and, fourth, to provide a means whereby the tip may be made to revolve freely upon the bolt and thus avert the danger of revolving the end of the tip upon the surface of the glass.

1 attain these objects by the construction shown in the accompanying drawing, in which Fig. 1 is a side elevation of the supporting bracket and the compression bolt with the rubber tip shown in. section to illus trate, first, its form to provide a nonrevoluble bearing upon the surface of the glass, and, second, to show how it is mounted upon the end of the compression bolt. Fig. '2 is a transverse sectional elevation of an automobile window or door frame showing the manner of applying this antirattler and its tip, and, Fig. 8 is a back elevation of the bracket.

Similar reference characters indicate similar parts throughout the several views.

This tip is designed particularly for use upon the bolt and bracket shown in my application N0. 466,2a8, filed May l 921, (design) and I have shown its apphcation herein, in three figures as herelnbefore shown, so as to make the application of the tip, and its action upon the glass, as plainly understandable as possible.

In thedrawing 1 represents the part of the sustaining bracket that carries the bolt 4:; 2 shows a central offset for receiving the bead upon the edges of the upholstering adjacent to the glass; and 3 represents the 1921. Serial 1%. 479,184.-

base of the bracket, or the part thereofthat is secured to the 'window or door casing 9. lVlth the bracketl secured to the frame 9,

as in Fig; 52, the bolt 4 may be revolved,

relatively, to the right,'and force the tip snugly against the surface of the glass 10,

and the opposite; surface of the edges of the glass firmly against the flexible packing 11 on the frame 8.

Coming, now, to a detailed description of my invention, the tip 5 is made of some very flexible air tight material, as soft rubber, and has an annular groove in itsback opening for the reception of the washer 6, by nieans of which it is mounted upon the end of thebolt 4 in such a manner that it may be revolved freely thereon, and without danger of its dropping off or becoming disconnected from the bolt. It will be seen that by this arrangement, as soon as the tipj5 begins to press against thesurface of theglass it will be held from revolvingwhenthe bolt is forcing it against the glass, and the pressure will be directly against the glass.

The outer surface of this tip is dished. or hollowed inwardly, as indicated at 7, forming a cupthat becomes air tight when the tip is pressed a ainst the surface of the glass, forcing a part of the ,air out of the cup and forming a vacuous space that'will cause the tip to adhere very closely and firmly to the glass and will prevent the bolt from being loosened in its bearings and allowing the glass to become loose in the frame and cause irritatlng rattling 111 its frame. This acts a double purpose, first, it prevents the annoyance of rattling windows and doors, and, secondly, it averts, to a large'extent, the

danger of breaking the'glass when driving over rough road beds.

It is to be understood that the wall between the cup 7 and the washer 6 is to be air tight so that when the cup is pressed heavily against the surface of the glass a partial vacuum will be formed so that if the bolt is withdrawn the tip will adhere to the glass until drawn away by the force of the receding bolt drawing upon it.

Having thus fully described my invention, what I claim as new in the art, iszl 1. In combinationnwith the bracket and 2 the front surface and from theiback surface with an air tight wall betweensaid cups, the

cup in the back surface having an annular groove in its walls, and a metal Washer anchored in said groove and securely but revolubly mounted upon the end of the bolt and extending thence Well over the Walls of the cup on the front surface of the pad.

2. In combination with the supporting bracket and the compression bolt of an antirattler for automobile Windows, a rubber tip 10 made hollow at the back side and having an annular groove in the Walls, the "front side of said tip made hollow forming an airtight cup in the front surface, of the tip a Washer securely but revolubly mounted upon the end of the compression bolt, and the tip made to embrace the edges of the Washer in the an nular groove.

Signed at Grand Rapids, Michigan, May

CHARLES F. ATTWOOD. 

